GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The CMB (Cosmic Microwave Background Radiation) is:
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the remaining energy from the big bang.
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incredibly hot.
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visible to the human eye.
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only located in certain places in the universe.
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Explanation:
Detailed explanation-1: -The Cosmic Microwave Background (CMB) is the cooled remnant of the first light that could ever travel freely throughout the Universe. This ‘fossil’ radiation, the furthest that any telescope can see, was released soon after the ‘Big Bang’. Scientists consider it as an echo or ‘shockwave’ of the Big Bang.
Detailed explanation-2: -The CMB has a thermal black body spectrum at a temperature of 2.72548±0.00057 K. The spectral radiance dE/d peaks at 160.23 GHz, in the microwave range of frequencies, corresponding to a photon energy of about 6.626×10−4 eV.
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